Credit: The Associated Press

New Jersey Gov. Chris Christie, left, laughs with Newark Mayor and senate candidate Cory Booker in Newark, N.J., Wednesday, Sept. 25, 2013, during a ribbon-cutting ceremony for Newark charter schools. A new poll shows the U.S. Senate race between Newark Mayor Cory Booker and former Bogota Mayor Steve Lonegan is tightening as Lonegan accuses Booker of being more interested in Hollywood than New Jersey. Christie endorsed Lonegan but is close with Booker. (AP Photo/Mel Evans)

NEWARK, N.J. — Twitter is U.S. Senate candidate Cory Booker's preferred method of communication. He's often seen at public events pecking away at his phone, sending his 1.4 million followers staccato updates, inspirational quotations, shoutouts to campaign volunteers and nerdy musings on "Star Trek."

But his social media habit raised some eyebrows this week after the website Buzzfeed disclosed that he direct messaged with a stripper from Oregon.